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SECTION 7. CHECKOUT
PROCEDURE
CHECKOUT PROCEDURE
Use the following list to see that nothing was over looked:
1.
Have all braze joints on refrigerant lines been leak
checked?
2.
Line set fittings leak checked?
3.
Have base valves been opened?
4.
Have all refrigerant lines been secured and isolated
properly?
5.
Is the indoor coil drain hooked up and draining freely?
Pour water in drain pan.
6.
Is air filter installed and clean?
7.
Is the blower motor speed set correctly?
NOTE:
Installer should place unit data sheet and
installation instruction in customer packet and give to home
owner after installation is complete.
SYSTEM OPERATION CHECKOUT
1.
With thermostat set to the OFF position, close
disconnect switch or switches to complete circuits to
condensing unit and furnace. Set thermostat to call
for cooling.
2.
After the system starts, check the voltage and
amperage at the condensing unit contactor.
3.
If voltage is not within 10% of rated voltage, or
amperage greatly exceeds nameplate amperage, shut
down the system and contact the local power
company for corrections; otherwise unsatisfactory
performance many result.
4.
With the system in operation, check the condensing
unit for unusual noise and undue vibration.
5.
Allow the system to operate until it is balanced or
stabilized (approximately 30 minutes), before making
further checks.
6.
Remove manifold gage hoses, and install cap on
Schrader valves.
Installer's Information Manual
SECTION 8. MAINTENANCE
CAUTION: Be sure the unit disconnect is in the
OFF position and that all electrical power to the unit is
turned off before cleaning the system.
The following maintenance points should be reviewed
annually:
INDOOR
•
The evaporator coil should be inspected for
blockages.
•
Vacuum or spray the coil fins with water to remove
dust and dirt.
OUTDOOR
•
Remove leaf or debris blockage from the
condenser.
•
Clean the condenser coil by spraying it with clean
water from a garden hose.
•
Spray water from inside of the coil outward. Avoid
wetting any electrical controls.
NOTE: Change air filters monthly to keep the airflow path
clean.
If unit is not operating properly, check the following items:
•
The indoor section for dirty filter and outdoor
section for leaf or debris blockage.
•
If the compressor has shutdown on thermal-
overload due to dirty filter or blockage, it may be
necessary to wait 2 hours to cool before the unit
will restart.
•
If the temperature setting on the thermostat is low
enough to bring the air conditioner on and system
still does not start, call a service technician.
Page 7
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